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Old 11-13-2008, 01:16 PM   #5 (permalink)
Aero Wannabe
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Join Date: Dec 2007
Location: NW Colo
Posts: 637

TDi - '04 VW Golf
90 day: 54.94 mpg (US)
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Your design looks like the Kammback profile I want to add over the hatch of my TDI Golf. As for vents and dew, in my experience dew and frost mostly settles downward onto the car. I am guessing that covering the back glass from above will prevent dew from forming most of the time. Last week I had 2 cars parked outside, one under canvas carport with no sides and one right behind it but not sheltered. On a cold, humid night the one under the shelter had clear windows but I had to scrape and scrape the other.

I can't wait to see how this progresses.
60 mpg hwy highest, 50+mpg lifetime
TDi=fast frugal fun

Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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